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Philips Repair Tips




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Search: philips
Results: 14209
Make Model Symptom Problem Solution By
PHILIPS MD2.11E
Failure of the degaussing switch off circuit (position 7507) on lsp Check position 7507 on the large signal panel. when position 7507 is defect add position 9507 (wire bridge). remarks :in production also the following positions are deleted: 2503, 2507, 2508, 3502, 3508, 3509, 3510, 6507, 6509 and 7507 introdu
PHILIPS MD2.11E
Extension cables Extension cables service extension cables 4822 310 10674 can be used for servicing lsp and also for the feature box.
PHILIPS MD2.11E
Err. 28. picture ok; no txt, no menu. Check and replace if necessary ic7400 on the txt panel saa5270 w/b m4. ic7400; saa5270wp/b/m3a (4822 209 90564) saa5270wp/d/m2d (4822 209 90354) saa5270wp/c/m3a (4822 209 90993) saa5270wp/e/m3a (4822 209 12877) saa5270wp/b/m4a (4822 209 13642) saa5
PHILIPS MD2.11E
Easy way to check the power supply Easy way to check the power supply the mc44603 can be checked for basic operation without the set being connected to the mains supply. method: 1) discharge the 300v smoothing capacitor. 2) connect a byd33d diode to pin one of the smps control i.c (c
PHILIPS MD2.11E
Does not function; supply defective. Check and replace if necessary r3505 (1.5Ω; 4822 117 12074) on the lsp.
PHILIPS MD2.11E
Digital black points in black and white picture when set is warmed up Check ic7450 (saa4970t; 4822 209 33689) on the feature box for temperature dependancy. if necessary replace.
PHILIPS MD2.11E
Dark picture via cvbs terrestrial. via scart picture is ok Check and replace if necessary c2405 (220nf; 4822 126 13473) on the lsp.
PHILIPS MD2.11E
Curtain effect just after a white vertical line (ringing phenomenon) To reduce the ringing phenomenon change the following positions on the small signal panel: position 4508 into 1k (4822 051 10102) position 3537 into 1k (5322 117 12487) position 3538 into 1k (5322 117 12487) position 3565 into 1k (4822 051 10102) po
PHILIPS MD2.11E
Crackling noise coming from the picture tube Crackling noise coming from the picture tube during light/dark changes of the picture contents. mount bleeder (4822 310 11113) between lot and picture tube. if problem still exist anti crackling coating (acc) can be applied. the code number for this ac
PHILIPS MD2.11E
Crack in sound with a mono signal with no modulation Change the set software (pos. 7202 on txt & control panel) into v_00540 or higher and for -/58 sets into v_00530 or higher. codenumbers: v_00530 4822 900 10857 v_00540 4822 900 10771 remarks :introduced in production in week 96
PHILIPS MD2.11E
Correction to styling 130 of product survey 1997-4 Correction to styling 130 of product survey 1997-4 the description of the code numbers 4822 466 10933 and 4822 466 10934 of position 3 of styling 130 in product survey 1997-4 is not correct. the correct description is; 4822 466 10933 protection plate
PHILIPS MD2.11E
Correction service manual Correction service manual on page 2 of the service manual the specification of the cvbs status on pin 8 of the euro connectors is wrong. the correct specification should be: 0 - 2v : int 4,5 - 7v : ext 16:9 9,5 - 12v : ext 4:3 remarks :p
PHILIPS MD2.11E
Colourspots on screen; degaussing defective The circularly pattern consists of a red spot in the middle, surrounded by a green circle, which again is surrounded by a blue circle. this is caused by a defective position 7507 on the lsp. delete position 7507. mount jumper 9507 on the lsp
PHILIPS MD2.11E
Codenumber information Codenumber information codenumber feature-box fbx 4 eco 100hz is 4822 212 10685.
PHILIPS MD2.11E
Code number of position 7207 of the text-control panel Code number of position 7207 of the txt-control panel the code number of position 7207 (um62256em-55ll) of the control panel is missing in the service manual. the code number is 4822 209 15179.
PHILIPS MD2.11E
Blinking led (set in protection) Set in i2c software protection due to problems with the i2c communication. check pin 12 of connector i46 on the audio module (scl line). look for a badly soldered (oxidated) pin 12. resolder pin 12 if required.
PHILIPS MD2.11E
Bad start behaviour, on and st.by led flashing Change mains input voltage by a variac. when start problem increases with an input voltage that is only about 10% below normal, check or replace the supply optocoupler. with a good optocoupler an avarage set easily starts on 60% of normal mains voltage.
PHILIPS MD2.11E
Bad focus or focus varies in a new set or after crt replacement Possible solution: short circuit the focus and the g2 pins of the picture tube with the aquadag coating. switch the set on for approximately 5 seconds. after this return the set to its original condition. check if the focus adjusted normally. if not repla
PHILIPS MD2.11E
After a while vertical and horizontal scrolling picture. Check and replace if necessary: ic7505 (software) in the feature box. software fbx3-f; 4822 900 10982 software fbx4-eco; 4822 900 10745.
PHILIPS MD2.11E
+5 v stand-by defective (also fuse 1580 defect) First check the +5 v supply panel before replacing the fuse. when the +5 v panel is defective, it could be that the +5 v becomes too high, which will damage the circuitry.